saxhorn
Concise Oxford English Dictionary © 2008 Oxford University Press:
saxhorn/ˈsakshɔːn/
▶noun a brass instrument with valves and a funnel-shaped mouthpiece, used mainly in military and brass bands.
– origin from the name of the Belgian instrument-makers Charles J. Sax and his son Antoine-Joseph ‘Adolphe’ Sax + horn.
'saxhorn' also found in these Oxford entries:

